The electricity that comes into our households from the grid is Alternating Current (AC). Most modern electronics, including EVs, use Direct Current (DC) for their operation. During AC charging of EVs, current from the grid is converted into DC using the on-board inverter, whereas in DC charging, the rapid or ultra-rapid charger converts AC into DC. All batteries degrade with time and use. Most EVs have a warranty for eight years or 100,000 miles, whichever is earlier. An EV battery is considered at end of its life if it no longer maintains 80% of total usable capacity and has more than 5% self-discharge rate over a 24-hour period (Engel et al. 2019). Accelerated battery degradation can be caused by charging and discharging patterns, such as repeatedly using the entire capacity of a battery, or repeated rapid charging (IEA 2020). Yang, X.-G., Leng, Y., Zhang, G., Ge, S. & Wang, C.-Y. Modeling of lithium plating induced aging of lithium-ion batteries: transition from linear to nonlinear aging. J. Power Sources 360, 28–40 (2017). Longchamps, R. S., Yang, X. G. & Wang, C. Y. Fundamental insights into battery thermal management and safety. ACS Energy Lett. 7, 1103–1111 (2022).

Zhang, J., Wu, B., Li, Z. & Huang, J. Simultaneous estimation of thermal parameters for large-format laminated lithium-ion batteries. J. Power Sources 259, 106–116 (2014). Aiken, C. P. et al. Li[Ni0.5Mn0.3Co0.2]O2 as a superior alternative to LiFePO4 for long-lived low voltage li-ion cells. J. Electrochem. Soc. 169, 050512 (2022). km in 10 minutes on a 700 km battery is about 3.4C. So if they can do 4C it's only for the first few minutes. Existing EVs, e.g. Model 3/Y and Lucid Air can do ~3C for a few minutes. This is an improvement, but not a quantum leap. View all comments Yang, X.-G. et al. Asymmetric temperature modulation for extreme fast charging of lithium-ion batteries. Joule 3, 3002–3019 (2019). Han, H.-B. et al. Lithium bis(fluorosulfonyl)imide (LiFSI) as conducting salt for nonaqueous liquid electrolytes for lithium-ion batteries: physicochemical and electrochemical properties. J. Power Sources 196, 3623–3632 (2011).https://pushevs.com/2020/04/04/comparison-of-different-ev-batteries-in-2020/ Accessed January 2021.

Newman, J. S. & Tobias, C. W. Theoretical analysis of current distribution in porous electrodes. J. Electrochem. Soc. 109, 1183 (1962). Leng, Y. et al. Fast charging of energy-dense lithium metal batteries in localized ether-based highly concentrated electrolytes. J. Electrochem. Soc. 168, 060548 (2021). When it comes to lithium-ion batteries, there are several different types, including lithium iron phosphate (LFP) and ternary lithium batteries. Although LFP batteries are some of the most durable and often cheaper, they typically have lower energy density and can suffer performance issues in the cold. (Source: CATL) CATL’s fast-charging LFP battery: ‘The perfect balance’ As you may have learned, much of the hobby is a balancing act, the most important factors to balance are the thrust generated by your motors and props, and the All Up Weight/AUW, (basically, the weight of your model, including the battery). Liu, T., Yang, X., Ge, S., Leng, Y. & Wang, C. Y. Ultrafast charging of energy-dense lithium-ion batteries for urban air mobility. eTransportation 7, 100103 (2021).Spending extra on long range components for a craft that only has a flight time of 5-6 mins is a needless expense because you won’t be able to fly to the limits of your range in 2.5-3 minutes, remember you always have to save enough battery power for your return journey! The transition to electric vehicles (EVs) is seen as an important means to reduce global carbon emissions from the transport sector, but a number of barriers to mass adoption of EVs have been identified. Technical concerns such as battery range, charging time, and battery life are prominent among these, particularly for battery-only EVs as compared to hybrids (Biresselioglu, Kaplan, and Yilmaz 2018). Increased battery sizes increase the range of EVs and the provision of rapid charging infrastructure reduces charging time, but we ask what effect these have on the third concern of EV battery life? Electrochemical Engine Center (ECEC) and Department of Mechanical Engineering, Pennsylvania State University, University Park, PA, USA Like propellers, LiPo batteries are a consumable in the hobby, however they should last longer than your props, as long as you treat them well! I mentioned internal resistance earlier, this is what kills your batteries over time. The more you use a LiPo, the more the internal resistance increases. Internal resistance can be thought of as a component within your battery that uses electrical energy, leaving less power for your motors. That means the main battery must be replaced to resolve the issue. The battery test has given you misleading information.